Enum trustfall_core::interpreter::CandidateValue

#[non_exhaustive]
pub enum CandidateValue<T> {
    Impossible,
    Single(T),
    Multiple(Vec<T>),
    Range(Range<T>),
    All,
}

Candidate values for the value of a vertex property.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Impossible

This property has no valid value that satisfies the query.

Single(T)

There’s only one value that could satisfy the query.

Multiple(Vec<T>)

There are multiple discrete values that could satisfy the query.

Range(Range<T>)

A continuous range of values for this property could satisfy this query. The endpoints of the range may be inclusive or exclusive, and the range may include or exclude the null value.

All

We’ve detected no constraints on the value of this property.

Trait Implementations

impl<T: Clone> Clone for CandidateValue<T>

fn clone(&self) -> CandidateValue<T>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug> Debug for CandidateValue<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de, T> Deserialize<'de> for CandidateValue<T>where T: Deserialize<'de>,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T: PartialEq> PartialEq for CandidateValue<T>

fn eq(&self, other: &CandidateValue<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T> Serialize for CandidateValue<T>where T: Serialize,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<T: Eq> Eq for CandidateValue<T>

impl<T> StructuralEq for CandidateValue<T>

impl<T> StructuralPartialEq for CandidateValue<T>